Novel oil-based suspension concentrates consisting of at least one compound of formula (I) that is solid at room temperature, at least one penetration promoter, at least one vegetable oil, at least one nonionic surfactant and/or at least one anionic surfactant and optionally one or more additives from the group of emulsifiers, foam inhibitors, preservatives, antioxidants, dyes and/or inert filling materials, a process for the preparation of these suspension concentrates and also their use for applying the contained active ingredients to plants and/or their habitat and for controlling insects.